Project-specific implementations of CreateFromTemplateAttributesProvider are copy-pasted to the Java SE, web and EJB
project, and entirely missing from the app client project. The copy-pasted code should be removed and a common
implementation added to java.api.common.

I also got an offline question from tmysik whether the new class could be put in a package more specific than the root
one. So I decided to just put the new method in QuerySupport, attaching the new patch. I would like to commit it this
week, ideally on Thursday.